Home / 113,426.40-156,548.40-86,527.20

Finding the Fourth Proportional to 113,426.40, 156,548.40 and 86,527.20

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Solution

The fourth proportional to 113,426.40, 156,548.40 and 86,527.20 is: 119,422.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,426.40 : 156,548.40 = 86,527.20 : x
  2. Step 2: Convert to fraction form
    113,426.40/156,548.40 = 86,527.20/x
  3. Step 3: Cross multiply
    113,426.40x = 156,548.40 × 86,527.20
  4. Step 4: Simplify right side
    113,426.40x = 13,545,694,716.48
  5. Step 5: Solve for x
    x = 13,545,694,716.48/113,426.40
  6. Step 6: Final answer
    x = 119,422.77

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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.