Home / 112,768.90-155,619.76-61,085.02

Finding the Fourth Proportional to 112,768.90, 155,619.76 and 61,085.02

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Solution

The fourth proportional to 112,768.90, 155,619.76 and 61,085.02 is: 84,296.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,768.90 : 155,619.76 = 61,085.02 : x
  2. Step 2: Convert to fraction form
    112,768.90/155,619.76 = 61,085.02/x
  3. Step 3: Cross multiply
    112,768.90x = 155,619.76 × 61,085.02
  4. Step 4: Simplify right side
    112,768.90x = 9,506,036,407.20
  5. Step 5: Solve for x
    x = 9,506,036,407.20/112,768.90
  6. Step 6: Final answer
    x = 84,296.62

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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.