Home / 99,277.29-137,059.25-65,384.28

Finding the Fourth Proportional to 99,277.29, 137,059.25 and 65,384.28

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Solution

The fourth proportional to 99,277.29, 137,059.25 and 65,384.28 is: 90,267.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,277.29 : 137,059.25 = 65,384.28 : x
  2. Step 2: Convert to fraction form
    99,277.29/137,059.25 = 65,384.28/x
  3. Step 3: Cross multiply
    99,277.29x = 137,059.25 × 65,384.28
  4. Step 4: Simplify right side
    99,277.29x = 8,961,520,051.67
  5. Step 5: Solve for x
    x = 8,961,520,051.67/99,277.29
  6. Step 6: Final answer
    x = 90,267.57

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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.