Home / 158,354.38-218,533.29-89,438.31

Finding the Fourth Proportional to 158,354.38, 218,533.29 and 89,438.31

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Solution

The fourth proportional to 158,354.38, 218,533.29 and 89,438.31 is: 123,427.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,354.38 : 218,533.29 = 89,438.31 : x
  2. Step 2: Convert to fraction form
    158,354.38/218,533.29 = 89,438.31/x
  3. Step 3: Cross multiply
    158,354.38x = 218,533.29 × 89,438.31
  4. Step 4: Simplify right side
    158,354.38x = 19,545,248,136.34
  5. Step 5: Solve for x
    x = 19,545,248,136.34/158,354.38
  6. Step 6: Final answer
    x = 123,427.27

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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.