Home / 99,359.12-137,119.08-56,925.84

Finding the Fourth Proportional to 99,359.12, 137,119.08 and 56,925.84

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Solution

The fourth proportional to 99,359.12, 137,119.08 and 56,925.84 is: 78,559.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,359.12 : 137,119.08 = 56,925.84 : x
  2. Step 2: Convert to fraction form
    99,359.12/137,119.08 = 56,925.84/x
  3. Step 3: Cross multiply
    99,359.12x = 137,119.08 × 56,925.84
  4. Step 4: Simplify right side
    99,359.12x = 7,805,618,809.03
  5. Step 5: Solve for x
    x = 7,805,618,809.03/99,359.12
  6. Step 6: Final answer
    x = 78,559.66

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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.