Home / 147,561.84-221,175.60-129,758.16

Finding the Fourth Proportional to 147,561.84, 221,175.60 and 129,758.16

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Solution

The fourth proportional to 147,561.84, 221,175.60 and 129,758.16 is: 194,490.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,561.84 : 221,175.60 = 129,758.16 : x
  2. Step 2: Convert to fraction form
    147,561.84/221,175.60 = 129,758.16/x
  3. Step 3: Cross multiply
    147,561.84x = 221,175.60 × 129,758.16
  4. Step 4: Simplify right side
    147,561.84x = 28,699,338,892.90
  5. Step 5: Solve for x
    x = 28,699,338,892.90/147,561.84
  6. Step 6: Final answer
    x = 194,490.25

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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.