Home / 113,631.48-156,810.56-61,948.58

Finding the Fourth Proportional to 113,631.48, 156,810.56 and 61,948.58

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Solution

The fourth proportional to 113,631.48, 156,810.56 and 61,948.58 is: 85,488.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,631.48 : 156,810.56 = 61,948.58 : x
  2. Step 2: Convert to fraction form
    113,631.48/156,810.56 = 61,948.58/x
  3. Step 3: Cross multiply
    113,631.48x = 156,810.56 × 61,948.58
  4. Step 4: Simplify right side
    113,631.48x = 9,714,190,427.21
  5. Step 5: Solve for x
    x = 9,714,190,427.21/113,631.48
  6. Step 6: Final answer
    x = 85,488.55

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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.