Home / 113,040.40-169,560.60-86,877.20

Finding the Fourth Proportional to 113,040.40, 169,560.60 and 86,877.20

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Solution

The fourth proportional to 113,040.40, 169,560.60 and 86,877.20 is: 130,315.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,040.40 : 169,560.60 = 86,877.20 : x
  2. Step 2: Convert to fraction form
    113,040.40/169,560.60 = 86,877.20/x
  3. Step 3: Cross multiply
    113,040.40x = 169,560.60 × 86,877.20
  4. Step 4: Simplify right side
    113,040.40x = 14,730,950,158.32
  5. Step 5: Solve for x
    x = 14,730,950,158.32/113,040.40
  6. Step 6: Final answer
    x = 130,315.80

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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.