Home / 113,055.48-156,017.16-70,638.62

Finding the Fourth Proportional to 113,055.48, 156,017.16 and 70,638.62

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Solution

The fourth proportional to 113,055.48, 156,017.16 and 70,638.62 is: 97,481.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,055.48 : 156,017.16 = 70,638.62 : x
  2. Step 2: Convert to fraction form
    113,055.48/156,017.16 = 70,638.62/x
  3. Step 3: Cross multiply
    113,055.48x = 156,017.16 × 70,638.62
  4. Step 4: Simplify right side
    113,055.48x = 11,020,836,098.63
  5. Step 5: Solve for x
    x = 11,020,836,098.63/113,055.48
  6. Step 6: Final answer
    x = 97,481.66

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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.