Home / 113,001.12-155,971.80-70,534.08

Finding the Fourth Proportional to 113,001.12, 155,971.80 and 70,534.08

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Solution

The fourth proportional to 113,001.12, 155,971.80 and 70,534.08 is: 97,355.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,001.12 : 155,971.80 = 70,534.08 : x
  2. Step 2: Convert to fraction form
    113,001.12/155,971.80 = 70,534.08/x
  3. Step 3: Cross multiply
    113,001.12x = 155,971.80 × 70,534.08
  4. Step 4: Simplify right side
    113,001.12x = 11,001,327,418.94
  5. Step 5: Solve for x
    x = 11,001,327,418.94/113,001.12
  6. Step 6: Final answer
    x = 97,355.91

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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.