Home / 112,868.06-155,756.88-61,883.62

Finding the Fourth Proportional to 112,868.06, 155,756.88 and 61,883.62

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Solution

The fourth proportional to 112,868.06, 155,756.88 and 61,883.62 is: 85,398.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,868.06 : 155,756.88 = 61,883.62 : x
  2. Step 2: Convert to fraction form
    112,868.06/155,756.88 = 61,883.62/x
  3. Step 3: Cross multiply
    112,868.06x = 155,756.88 × 61,883.62
  4. Step 4: Simplify right side
    112,868.06x = 9,638,799,574.31
  5. Step 5: Solve for x
    x = 9,638,799,574.31/112,868.06
  6. Step 6: Final answer
    x = 85,398.82

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1.5x scale

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.