Home / 106,618.55-147,013.65-87,176.81

Finding the Fourth Proportional to 106,618.55, 147,013.65 and 87,176.81

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Solution

The fourth proportional to 106,618.55, 147,013.65 and 87,176.81 is: 120,205.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,618.55 : 147,013.65 = 87,176.81 : x
  2. Step 2: Convert to fraction form
    106,618.55/147,013.65 = 87,176.81/x
  3. Step 3: Cross multiply
    106,618.55x = 147,013.65 × 87,176.81
  4. Step 4: Simplify right side
    106,618.55x = 12,816,180,574.04
  5. Step 5: Solve for x
    x = 12,816,180,574.04/106,618.55
  6. Step 6: Final answer
    x = 120,205.92

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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.