Home / 113,655.24-156,878.64-65,920.32

Finding the Fourth Proportional to 113,655.24, 156,878.64 and 65,920.32

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Solution

The fourth proportional to 113,655.24, 156,878.64 and 65,920.32 is: 90,990.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,655.24 : 156,878.64 = 65,920.32 : x
  2. Step 2: Convert to fraction form
    113,655.24/156,878.64 = 65,920.32/x
  3. Step 3: Cross multiply
    113,655.24x = 156,878.64 × 65,920.32
  4. Step 4: Simplify right side
    113,655.24x = 10,341,490,149.96
  5. Step 5: Solve for x
    x = 10,341,490,149.96/113,655.24
  6. Step 6: Final answer
    x = 90,990.00

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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.