Home / 113,608.61-156,780.19-68,312.53

Finding the Fourth Proportional to 113,608.61, 156,780.19 and 68,312.53

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Solution

The fourth proportional to 113,608.61, 156,780.19 and 68,312.53 is: 94,271.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,608.61 : 156,780.19 = 68,312.53 : x
  2. Step 2: Convert to fraction form
    113,608.61/156,780.19 = 68,312.53/x
  3. Step 3: Cross multiply
    113,608.61x = 156,780.19 × 68,312.53
  4. Step 4: Simplify right side
    113,608.61x = 10,710,051,714.15
  5. Step 5: Solve for x
    x = 10,710,051,714.15/113,608.61
  6. Step 6: Final answer
    x = 94,271.48

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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.