Home / 147,817.86-203,988.84-84,155.65

Finding the Fourth Proportional to 147,817.86, 203,988.84 and 84,155.65

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Solution

The fourth proportional to 147,817.86, 203,988.84 and 84,155.65 is: 116,134.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,817.86 : 203,988.84 = 84,155.65 : x
  2. Step 2: Convert to fraction form
    147,817.86/203,988.84 = 84,155.65/x
  3. Step 3: Cross multiply
    147,817.86x = 203,988.84 × 84,155.65
  4. Step 4: Simplify right side
    147,817.86x = 17,166,813,002.17
  5. Step 5: Solve for x
    x = 17,166,813,002.17/147,817.86
  6. Step 6: Final answer
    x = 116,134.91

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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.