Home / 131,988.04-182,095.76-86,690.58

Finding the Fourth Proportional to 131,988.04, 182,095.76 and 86,690.58

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Solution

The fourth proportional to 131,988.04, 182,095.76 and 86,690.58 is: 119,601.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,988.04 : 182,095.76 = 86,690.58 : x
  2. Step 2: Convert to fraction form
    131,988.04/182,095.76 = 86,690.58/x
  3. Step 3: Cross multiply
    131,988.04x = 182,095.76 × 86,690.58
  4. Step 4: Simplify right side
    131,988.04x = 15,785,987,049.94
  5. Step 5: Solve for x
    x = 15,785,987,049.94/131,988.04
  6. Step 6: Final answer
    x = 119,601.65

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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.