Home / 191,054.16-286,532.10-78,766.29

Finding the Fourth Proportional to 191,054.16, 286,532.10 and 78,766.29

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Solution

The fourth proportional to 191,054.16, 286,532.10 and 78,766.29 is: 118,129.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,054.16 : 286,532.10 = 78,766.29 : x
  2. Step 2: Convert to fraction form
    191,054.16/286,532.10 = 78,766.29/x
  3. Step 3: Cross multiply
    191,054.16x = 286,532.10 × 78,766.29
  4. Step 4: Simplify right side
    191,054.16x = 22,569,070,482.91
  5. Step 5: Solve for x
    x = 22,569,070,482.91/191,054.16
  6. Step 6: Final answer
    x = 118,129.18

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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.