Home / 136,866.60-205,271.10-57,983.40

Finding the Fourth Proportional to 136,866.60, 205,271.10 and 57,983.40

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Solution

The fourth proportional to 136,866.60, 205,271.10 and 57,983.40 is: 86,962.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,866.60 : 205,271.10 = 57,983.40 : x
  2. Step 2: Convert to fraction form
    136,866.60/205,271.10 = 57,983.40/x
  3. Step 3: Cross multiply
    136,866.60x = 205,271.10 × 57,983.40
  4. Step 4: Simplify right side
    136,866.60x = 11,902,316,299.74
  5. Step 5: Solve for x
    x = 11,902,316,299.74/136,866.60
  6. Step 6: Final answer
    x = 86,962.90

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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.