Home / 117,589.36-162,298.98-72,306.30

Finding the Fourth Proportional to 117,589.36, 162,298.98 and 72,306.30

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Solution

The fourth proportional to 117,589.36, 162,298.98 and 72,306.30 is: 99,798.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,589.36 : 162,298.98 = 72,306.30 : x
  2. Step 2: Convert to fraction form
    117,589.36/162,298.98 = 72,306.30/x
  3. Step 3: Cross multiply
    117,589.36x = 162,298.98 × 72,306.30
  4. Step 4: Simplify right side
    117,589.36x = 11,735,238,737.57
  5. Step 5: Solve for x
    x = 11,735,238,737.57/117,589.36
  6. Step 6: Final answer
    x = 99,798.47

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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.