Home / 99,220.95-136,927.38-53,898.93

Finding the Fourth Proportional to 99,220.95, 136,927.38 and 53,898.93

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Solution

The fourth proportional to 99,220.95, 136,927.38 and 53,898.93 is: 74,381.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,220.95 : 136,927.38 = 53,898.93 : x
  2. Step 2: Convert to fraction form
    99,220.95/136,927.38 = 53,898.93/x
  3. Step 3: Cross multiply
    99,220.95x = 136,927.38 × 53,898.93
  4. Step 4: Simplify right side
    99,220.95x = 7,380,239,269.70
  5. Step 5: Solve for x
    x = 7,380,239,269.70/99,220.95
  6. Step 6: Final answer
    x = 74,381.86

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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.