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Finding the Fourth Proportional to 180,937.80, 249,937.65 and 139,020.30

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Solution

The fourth proportional to 180,937.80, 249,937.65 and 139,020.30 is: 192,035.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,937.80 : 249,937.65 = 139,020.30 : x
  2. Step 2: Convert to fraction form
    180,937.80/249,937.65 = 139,020.30/x
  3. Step 3: Cross multiply
    180,937.80x = 249,937.65 × 139,020.30
  4. Step 4: Simplify right side
    180,937.80x = 34,746,407,084.30
  5. Step 5: Solve for x
    x = 34,746,407,084.30/180,937.80
  6. Step 6: Final answer
    x = 192,035.09

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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.