Home / 136,864.26-205,302.15-66,802.50

Finding the Fourth Proportional to 136,864.26, 205,302.15 and 66,802.50

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Solution

The fourth proportional to 136,864.26, 205,302.15 and 66,802.50 is: 100,206.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,864.26 : 205,302.15 = 66,802.50 : x
  2. Step 2: Convert to fraction form
    136,864.26/205,302.15 = 66,802.50/x
  3. Step 3: Cross multiply
    136,864.26x = 205,302.15 × 66,802.50
  4. Step 4: Simplify right side
    136,864.26x = 13,714,696,875.38
  5. Step 5: Solve for x
    x = 13,714,696,875.38/136,864.26
  6. Step 6: Final answer
    x = 100,206.56

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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.