Home / 142,527.11-213,864.44-103,407.12

Finding the Fourth Proportional to 142,527.11, 213,864.44 and 103,407.12

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Solution

The fourth proportional to 142,527.11, 213,864.44 and 103,407.12 is: 155,164.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,527.11 : 213,864.44 = 103,407.12 : x
  2. Step 2: Convert to fraction form
    142,527.11/213,864.44 = 103,407.12/x
  3. Step 3: Cross multiply
    142,527.11x = 213,864.44 × 103,407.12
  4. Step 4: Simplify right side
    142,527.11x = 22,115,105,293.78
  5. Step 5: Solve for x
    x = 22,115,105,293.78/142,527.11
  6. Step 6: Final answer
    x = 155,164.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.