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Finding the Fourth Proportional to 180,459, 249,027.18 and 99,890.04

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Solution

The fourth proportional to 180,459, 249,027.18 and 99,890.04 is: 137,844.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,459 : 249,027.18 = 99,890.04 : x
  2. Step 2: Convert to fraction form
    180,459/249,027.18 = 99,890.04/x
  3. Step 3: Cross multiply
    180,459x = 249,027.18 × 99,890.04
  4. Step 4: Simplify right side
    180,459x = 24,875,334,971.29
  5. Step 5: Solve for x
    x = 24,875,334,971.29/180,459
  6. Step 6: Final answer
    x = 137,844.80

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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.