Home / 125,889,432.60-188,834,148.90-74,745,125.40

Finding the Fourth Proportional to 125,889,432.60, 188,834,148.90 and 74,745,125.40

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Solution

The fourth proportional to 125,889,432.60, 188,834,148.90 and 74,745,125.40 is: 112,117,688.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,889,432.60 : 188,834,148.90 = 74,745,125.40 : x
  2. Step 2: Convert to fraction form
    125,889,432.60/188,834,148.90 = 74,745,125.40/x
  3. Step 3: Cross multiply
    125,889,432.60x = 188,834,148.90 × 74,745,125.40
  4. Step 4: Simplify right side
    125,889,432.60x = 14,114,432,139,332,774
  5. Step 5: Solve for x
    x = 14,114,432,139,332,774/125,889,432.60
  6. Step 6: Final answer
    x = 112,117,688.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.