Home / 157,962.41-217,988.13-86,342.71

Finding the Fourth Proportional to 157,962.41, 217,988.13 and 86,342.71

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Solution

The fourth proportional to 157,962.41, 217,988.13 and 86,342.71 is: 119,152.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,962.41 : 217,988.13 = 86,342.71 : x
  2. Step 2: Convert to fraction form
    157,962.41/217,988.13 = 86,342.71/x
  3. Step 3: Cross multiply
    157,962.41x = 217,988.13 × 86,342.71
  4. Step 4: Simplify right side
    157,962.41x = 18,821,685,892.03
  5. Step 5: Solve for x
    x = 18,821,685,892.03/157,962.41
  6. Step 6: Final answer
    x = 119,152.94

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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.