Home / 103,686.03-155,407.66-39,602.17

Finding the Fourth Proportional to 103,686.03, 155,407.66 and 39,602.17

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Solution

The fourth proportional to 103,686.03, 155,407.66 and 39,602.17 is: 59,356.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,686.03 : 155,407.66 = 39,602.17 : x
  2. Step 2: Convert to fraction form
    103,686.03/155,407.66 = 39,602.17/x
  3. Step 3: Cross multiply
    103,686.03x = 155,407.66 × 39,602.17
  4. Step 4: Simplify right side
    103,686.03x = 6,154,480,570.62
  5. Step 5: Solve for x
    x = 6,154,480,570.62/103,686.03
  6. Step 6: Final answer
    x = 59,356.89

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1.5x scale

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.