Home / 145,537.39-218,046.38-78,935.04

Finding the Fourth Proportional to 145,537.39, 218,046.38 and 78,935.04

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Solution

The fourth proportional to 145,537.39, 218,046.38 and 78,935.04 is: 118,261.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,537.39 : 218,046.38 = 78,935.04 : x
  2. Step 2: Convert to fraction form
    145,537.39/218,046.38 = 78,935.04/x
  3. Step 3: Cross multiply
    145,537.39x = 218,046.38 × 78,935.04
  4. Step 4: Simplify right side
    145,537.39x = 17,211,499,332.48
  5. Step 5: Solve for x
    x = 17,211,499,332.48/145,537.39
  6. Step 6: Final answer
    x = 118,261.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.