Home / 136,148.80-187,828-98,340.16

Finding the Fourth Proportional to 136,148.80, 187,828 and 98,340.16

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Solution

The fourth proportional to 136,148.80, 187,828 and 98,340.16 is: 135,668.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,148.80 : 187,828 = 98,340.16 : x
  2. Step 2: Convert to fraction form
    136,148.80/187,828 = 98,340.16/x
  3. Step 3: Cross multiply
    136,148.80x = 187,828 × 98,340.16
  4. Step 4: Simplify right side
    136,148.80x = 18,471,035,572.48
  5. Step 5: Solve for x
    x = 18,471,035,572.48/136,148.80
  6. Step 6: Final answer
    x = 135,668.00

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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.