Home / 157,347.13-217,136.30-85,727.67

Finding the Fourth Proportional to 157,347.13, 217,136.30 and 85,727.67

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Solution

The fourth proportional to 157,347.13, 217,136.30 and 85,727.67 is: 118,302.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,347.13 : 217,136.30 = 85,727.67 : x
  2. Step 2: Convert to fraction form
    157,347.13/217,136.30 = 85,727.67/x
  3. Step 3: Cross multiply
    157,347.13x = 217,136.30 × 85,727.67
  4. Step 4: Simplify right side
    157,347.13x = 18,614,587,828.52
  5. Step 5: Solve for x
    x = 18,614,587,828.52/157,347.13
  6. Step 6: Final answer
    x = 118,302.68

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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.