Home / 191,827.32-287,740.98-86,618.04

Finding the Fourth Proportional to 191,827.32, 287,740.98 and 86,618.04

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Solution

The fourth proportional to 191,827.32, 287,740.98 and 86,618.04 is: 129,927.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,827.32 : 287,740.98 = 86,618.04 : x
  2. Step 2: Convert to fraction form
    191,827.32/287,740.98 = 86,618.04/x
  3. Step 3: Cross multiply
    191,827.32x = 287,740.98 × 86,618.04
  4. Step 4: Simplify right side
    191,827.32x = 24,923,559,715.28
  5. Step 5: Solve for x
    x = 24,923,559,715.28/191,827.32
  6. Step 6: Final answer
    x = 129,927.06

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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.