Home / 112,749.71-155,592.87-61,762.02

Finding the Fourth Proportional to 112,749.71, 155,592.87 and 61,762.02

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Solution

The fourth proportional to 112,749.71, 155,592.87 and 61,762.02 is: 85,230.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,749.71 : 155,592.87 = 61,762.02 : x
  2. Step 2: Convert to fraction form
    112,749.71/155,592.87 = 61,762.02/x
  3. Step 3: Cross multiply
    112,749.71x = 155,592.87 × 61,762.02
  4. Step 4: Simplify right side
    112,749.71x = 9,609,729,948.80
  5. Step 5: Solve for x
    x = 9,609,729,948.80/112,749.71
  6. Step 6: Final answer
    x = 85,230.64

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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.