Home / 112,866.08-155,756.95-61,883.47

Finding the Fourth Proportional to 112,866.08, 155,756.95 and 61,883.47

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Solution

The fourth proportional to 112,866.08, 155,756.95 and 61,883.47 is: 85,400.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,866.08 : 155,756.95 = 61,883.47 : x
  2. Step 2: Convert to fraction form
    112,866.08/155,756.95 = 61,883.47/x
  3. Step 3: Cross multiply
    112,866.08x = 155,756.95 × 61,883.47
  4. Step 4: Simplify right side
    112,866.08x = 9,638,780,542.62
  5. Step 5: Solve for x
    x = 9,638,780,542.62/112,866.08
  6. Step 6: Final answer
    x = 85,400.15

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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.