Home / 99,298.08-137,048.40-67,445.28

Finding the Fourth Proportional to 99,298.08, 137,048.40 and 67,445.28

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Solution

The fourth proportional to 99,298.08, 137,048.40 and 67,445.28 is: 93,086.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,298.08 : 137,048.40 = 67,445.28 : x
  2. Step 2: Convert to fraction form
    99,298.08/137,048.40 = 67,445.28/x
  3. Step 3: Cross multiply
    99,298.08x = 137,048.40 × 67,445.28
  4. Step 4: Simplify right side
    99,298.08x = 9,243,267,711.55
  5. Step 5: Solve for x
    x = 9,243,267,711.55/99,298.08
  6. Step 6: Final answer
    x = 93,086.07

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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.