Home / 140,246.60-193,547.56-85,781.70

Finding the Fourth Proportional to 140,246.60, 193,547.56 and 85,781.70

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Solution

The fourth proportional to 140,246.60, 193,547.56 and 85,781.70 is: 118,383.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,246.60 : 193,547.56 = 85,781.70 : x
  2. Step 2: Convert to fraction form
    140,246.60/193,547.56 = 85,781.70/x
  3. Step 3: Cross multiply
    140,246.60x = 193,547.56 × 85,781.70
  4. Step 4: Simplify right side
    140,246.60x = 16,602,837,759.91
  5. Step 5: Solve for x
    x = 16,602,837,759.91/140,246.60
  6. Step 6: Final answer
    x = 118,383.17

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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.