Home / 113,125.65-156,106.49-62,128.45

Finding the Fourth Proportional to 113,125.65, 156,106.49 and 62,128.45

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Solution

The fourth proportional to 113,125.65, 156,106.49 and 62,128.45 is: 85,733.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,125.65 : 156,106.49 = 62,128.45 : x
  2. Step 2: Convert to fraction form
    113,125.65/156,106.49 = 62,128.45/x
  3. Step 3: Cross multiply
    113,125.65x = 156,106.49 × 62,128.45
  4. Step 4: Simplify right side
    113,125.65x = 9,698,654,492.60
  5. Step 5: Solve for x
    x = 9,698,654,492.60/113,125.65
  6. Step 6: Final answer
    x = 85,733.47

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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.