Home / 106,312.29-146,574.14-87,121.77

Finding the Fourth Proportional to 106,312.29, 146,574.14 and 87,121.77

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Solution

The fourth proportional to 106,312.29, 146,574.14 and 87,121.77 is: 120,115.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,312.29 : 146,574.14 = 87,121.77 : x
  2. Step 2: Convert to fraction form
    106,312.29/146,574.14 = 87,121.77/x
  3. Step 3: Cross multiply
    106,312.29x = 146,574.14 × 87,121.77
  4. Step 4: Simplify right side
    106,312.29x = 12,769,798,077.42
  5. Step 5: Solve for x
    x = 12,769,798,077.42/106,312.29
  6. Step 6: Final answer
    x = 120,115.92

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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.