Home / 113,528.16-156,476.88-77,656.32

Finding the Fourth Proportional to 113,528.16, 156,476.88 and 77,656.32

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Solution

The fourth proportional to 113,528.16, 156,476.88 and 77,656.32 is: 107,034.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,528.16 : 156,476.88 = 77,656.32 : x
  2. Step 2: Convert to fraction form
    113,528.16/156,476.88 = 77,656.32/x
  3. Step 3: Cross multiply
    113,528.16x = 156,476.88 × 77,656.32
  4. Step 4: Simplify right side
    113,528.16x = 12,151,418,665.88
  5. Step 5: Solve for x
    x = 12,151,418,665.88/113,528.16
  6. Step 6: Final answer
    x = 107,034.40

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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.