Home / 191,341.17-287,117.46-78,995.12

Finding the Fourth Proportional to 191,341.17, 287,117.46 and 78,995.12

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Solution

The fourth proportional to 191,341.17, 287,117.46 and 78,995.12 is: 118,536.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,341.17 : 287,117.46 = 78,995.12 : x
  2. Step 2: Convert to fraction form
    191,341.17/287,117.46 = 78,995.12/x
  3. Step 3: Cross multiply
    191,341.17x = 287,117.46 × 78,995.12
  4. Step 4: Simplify right side
    191,341.17x = 22,680,876,771.21
  5. Step 5: Solve for x
    x = 22,680,876,771.21/191,341.17
  6. Step 6: Final answer
    x = 118,536.31

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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.