Home / 135,096.08-186,432.90-74,665.40

Finding the Fourth Proportional to 135,096.08, 186,432.90 and 74,665.40

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Solution

The fourth proportional to 135,096.08, 186,432.90 and 74,665.40 is: 103,038.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,096.08 : 186,432.90 = 74,665.40 : x
  2. Step 2: Convert to fraction form
    135,096.08/186,432.90 = 74,665.40/x
  3. Step 3: Cross multiply
    135,096.08x = 186,432.90 × 74,665.40
  4. Step 4: Simplify right side
    135,096.08x = 13,920,087,051.66
  5. Step 5: Solve for x
    x = 13,920,087,051.66/135,096.08
  6. Step 6: Final answer
    x = 103,038.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.