Home / 158,123.52-218,209.68-86,502.24

Finding the Fourth Proportional to 158,123.52, 218,209.68 and 86,502.24

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Solution

The fourth proportional to 158,123.52, 218,209.68 and 86,502.24 is: 119,372.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,123.52 : 218,209.68 = 86,502.24 : x
  2. Step 2: Convert to fraction form
    158,123.52/218,209.68 = 86,502.24/x
  3. Step 3: Cross multiply
    158,123.52x = 218,209.68 × 86,502.24
  4. Step 4: Simplify right side
    158,123.52x = 18,875,626,109.68
  5. Step 5: Solve for x
    x = 18,875,626,109.68/158,123.52
  6. Step 6: Final answer
    x = 119,372.67

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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.