Home / 191,929.64-287,886.10-65,581.16

Finding the Fourth Proportional to 191,929.64, 287,886.10 and 65,581.16

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Solution

The fourth proportional to 191,929.64, 287,886.10 and 65,581.16 is: 98,368.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,929.64 : 287,886.10 = 65,581.16 : x
  2. Step 2: Convert to fraction form
    191,929.64/287,886.10 = 65,581.16/x
  3. Step 3: Cross multiply
    191,929.64x = 287,886.10 × 65,581.16
  4. Step 4: Simplify right side
    191,929.64x = 18,879,904,385.88
  5. Step 5: Solve for x
    x = 18,879,904,385.88/191,929.64
  6. Step 6: Final answer
    x = 98,368.88

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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.