Home / 112,869.85-155,762.15-61,887.23

Finding the Fourth Proportional to 112,869.85, 155,762.15 and 61,887.23

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Solution

The fourth proportional to 112,869.85, 155,762.15 and 61,887.23 is: 85,405.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,869.85 : 155,762.15 = 61,887.23 : x
  2. Step 2: Convert to fraction form
    112,869.85/155,762.15 = 61,887.23/x
  3. Step 3: Cross multiply
    112,869.85x = 155,762.15 × 61,887.23
  4. Step 4: Simplify right side
    112,869.85x = 9,639,688,002.34
  5. Step 5: Solve for x
    x = 9,639,688,002.34/112,869.85
  6. Step 6: Final answer
    x = 85,405.34

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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.