Home / 202,127.20-302,996.40-157,123.60

Finding the Fourth Proportional to 202,127.20, 302,996.40 and 157,123.60

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Solution

The fourth proportional to 202,127.20, 302,996.40 and 157,123.60 is: 235,534.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,127.20 : 302,996.40 = 157,123.60 : x
  2. Step 2: Convert to fraction form
    202,127.20/302,996.40 = 157,123.60/x
  3. Step 3: Cross multiply
    202,127.20x = 302,996.40 × 157,123.60
  4. Step 4: Simplify right side
    202,127.20x = 47,607,885,155.04
  5. Step 5: Solve for x
    x = 47,607,885,155.04/202,127.20
  6. Step 6: Final answer
    x = 235,534.28

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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.