Home / 125,889,430.60-188,834,145.90-74,745,123.40

Finding the Fourth Proportional to 125,889,430.60, 188,834,145.90 and 74,745,123.40

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Solution

The fourth proportional to 125,889,430.60, 188,834,145.90 and 74,745,123.40 is: 112,117,685.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,889,430.60 : 188,834,145.90 = 74,745,123.40 : x
  2. Step 2: Convert to fraction form
    125,889,430.60/188,834,145.90 = 74,745,123.40/x
  3. Step 3: Cross multiply
    125,889,430.60x = 188,834,145.90 × 74,745,123.40
  4. Step 4: Simplify right side
    125,889,430.60x = 14,114,431,537,429,106
  5. Step 5: Solve for x
    x = 14,114,431,537,429,106/125,889,430.60
  6. Step 6: Final answer
    x = 112,117,685.10

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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.