Home / 125,117.18-172,661.80-67,756.95

Finding the Fourth Proportional to 125,117.18, 172,661.80 and 67,756.95

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Solution

The fourth proportional to 125,117.18, 172,661.80 and 67,756.95 is: 93,504.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,117.18 : 172,661.80 = 67,756.95 : x
  2. Step 2: Convert to fraction form
    125,117.18/172,661.80 = 67,756.95/x
  3. Step 3: Cross multiply
    125,117.18x = 172,661.80 × 67,756.95
  4. Step 4: Simplify right side
    125,117.18x = 11,699,036,949.51
  5. Step 5: Solve for x
    x = 11,699,036,949.51/125,117.18
  6. Step 6: Final answer
    x = 93,504.64

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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.