Home / 157,406.80-217,225.56-89,421.52

Finding the Fourth Proportional to 157,406.80, 217,225.56 and 89,421.52

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Solution

The fourth proportional to 157,406.80, 217,225.56 and 89,421.52 is: 123,404.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,406.80 : 217,225.56 = 89,421.52 : x
  2. Step 2: Convert to fraction form
    157,406.80/217,225.56 = 89,421.52/x
  3. Step 3: Cross multiply
    157,406.80x = 217,225.56 × 89,421.52
  4. Step 4: Simplify right side
    157,406.80x = 19,424,639,758.05
  5. Step 5: Solve for x
    x = 19,424,639,758.05/157,406.80
  6. Step 6: Final answer
    x = 123,404.07

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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.