Home / 157,320.12-217,099.26-85,701

Finding the Fourth Proportional to 157,320.12, 217,099.26 and 85,701

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Solution

The fourth proportional to 157,320.12, 217,099.26 and 85,701 is: 118,266.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,320.12 : 217,099.26 = 85,701 : x
  2. Step 2: Convert to fraction form
    157,320.12/217,099.26 = 85,701/x
  3. Step 3: Cross multiply
    157,320.12x = 217,099.26 × 85,701
  4. Step 4: Simplify right side
    157,320.12x = 18,605,623,681.26
  5. Step 5: Solve for x
    x = 18,605,623,681.26/157,320.12
  6. Step 6: Final answer
    x = 118,266.02

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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.