Home / 145,099.04-217,642.89-39,915.14

Finding the Fourth Proportional to 145,099.04, 217,642.89 and 39,915.14

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Solution

The fourth proportional to 145,099.04, 217,642.89 and 39,915.14 is: 59,871.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,099.04 : 217,642.89 = 39,915.14 : x
  2. Step 2: Convert to fraction form
    145,099.04/217,642.89 = 39,915.14/x
  3. Step 3: Cross multiply
    145,099.04x = 217,642.89 × 39,915.14
  4. Step 4: Simplify right side
    145,099.04x = 8,687,246,424.35
  5. Step 5: Solve for x
    x = 8,687,246,424.35/145,099.04
  6. Step 6: Final answer
    x = 59,871.15

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1.5x scale

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.