Home / 124,860.60-187,064.10-72,113.40

Finding the Fourth Proportional to 124,860.60, 187,064.10 and 72,113.40

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Solution

The fourth proportional to 124,860.60, 187,064.10 and 72,113.40 is: 108,039.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,860.60 : 187,064.10 = 72,113.40 : x
  2. Step 2: Convert to fraction form
    124,860.60/187,064.10 = 72,113.40/x
  3. Step 3: Cross multiply
    124,860.60x = 187,064.10 × 72,113.40
  4. Step 4: Simplify right side
    124,860.60x = 13,489,828,268.94
  5. Step 5: Solve for x
    x = 13,489,828,268.94/124,860.60
  6. Step 6: Final answer
    x = 108,039.11

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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.