Home / 113,433.66-156,538.35-70,397.10

Finding the Fourth Proportional to 113,433.66, 156,538.35 and 70,397.10

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Solution

The fourth proportional to 113,433.66, 156,538.35 and 70,397.10 is: 97,147.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,433.66 : 156,538.35 = 70,397.10 : x
  2. Step 2: Convert to fraction form
    113,433.66/156,538.35 = 70,397.10/x
  3. Step 3: Cross multiply
    113,433.66x = 156,538.35 × 70,397.10
  4. Step 4: Simplify right side
    113,433.66x = 11,019,845,878.79
  5. Step 5: Solve for x
    x = 11,019,845,878.79/113,433.66
  6. Step 6: Final answer
    x = 97,147.94

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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.