Home / 99,329.04-137,079-61,615.44

Finding the Fourth Proportional to 99,329.04, 137,079 and 61,615.44

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Solution

The fourth proportional to 99,329.04, 137,079 and 61,615.44 is: 85,032.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,329.04 : 137,079 = 61,615.44 : x
  2. Step 2: Convert to fraction form
    99,329.04/137,079 = 61,615.44/x
  3. Step 3: Cross multiply
    99,329.04x = 137,079 × 61,615.44
  4. Step 4: Simplify right side
    99,329.04x = 8,446,182,899.76
  5. Step 5: Solve for x
    x = 8,446,182,899.76/99,329.04
  6. Step 6: Final answer
    x = 85,032.36

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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.