Home / 118,715.90-178,159.10-46,679.76

Finding the Fourth Proportional to 118,715.90, 178,159.10 and 46,679.76

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Solution

The fourth proportional to 118,715.90, 178,159.10 and 46,679.76 is: 70,053.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,715.90 : 178,159.10 = 46,679.76 : x
  2. Step 2: Convert to fraction form
    118,715.90/178,159.10 = 46,679.76/x
  3. Step 3: Cross multiply
    118,715.90x = 178,159.10 × 46,679.76
  4. Step 4: Simplify right side
    118,715.90x = 8,316,423,796.42
  5. Step 5: Solve for x
    x = 8,316,423,796.42/118,715.90
  6. Step 6: Final answer
    x = 70,053.16

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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.