Home / 97,870.13-135,060.78-53,158.13

Finding the Fourth Proportional to 97,870.13, 135,060.78 and 53,158.13

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Solution

The fourth proportional to 97,870.13, 135,060.78 and 53,158.13 is: 73,358.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,870.13 : 135,060.78 = 53,158.13 : x
  2. Step 2: Convert to fraction form
    97,870.13/135,060.78 = 53,158.13/x
  3. Step 3: Cross multiply
    97,870.13x = 135,060.78 × 53,158.13
  4. Step 4: Simplify right side
    97,870.13x = 7,179,577,825.84
  5. Step 5: Solve for x
    x = 7,179,577,825.84/97,870.13
  6. Step 6: Final answer
    x = 73,358.22

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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.