Home / 131,024.32-180,818.40-74,445.28

Finding the Fourth Proportional to 131,024.32, 180,818.40 and 74,445.28

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Solution

The fourth proportional to 131,024.32, 180,818.40 and 74,445.28 is: 102,737.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,024.32 : 180,818.40 = 74,445.28 : x
  2. Step 2: Convert to fraction form
    131,024.32/180,818.40 = 74,445.28/x
  3. Step 3: Cross multiply
    131,024.32x = 180,818.40 × 74,445.28
  4. Step 4: Simplify right side
    131,024.32x = 13,461,076,417.15
  5. Step 5: Solve for x
    x = 13,461,076,417.15/131,024.32
  6. Step 6: Final answer
    x = 102,737.24

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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.