Home / 180,553.65-249,160.98-99,979.45

Finding the Fourth Proportional to 180,553.65, 249,160.98 and 99,979.45

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Solution

The fourth proportional to 180,553.65, 249,160.98 and 99,979.45 is: 137,969.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,553.65 : 249,160.98 = 99,979.45 : x
  2. Step 2: Convert to fraction form
    180,553.65/249,160.98 = 99,979.45/x
  3. Step 3: Cross multiply
    180,553.65x = 249,160.98 × 99,979.45
  4. Step 4: Simplify right side
    180,553.65x = 24,910,977,741.86
  5. Step 5: Solve for x
    x = 24,910,977,741.86/180,553.65
  6. Step 6: Final answer
    x = 137,969.95

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1.5x scale

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.