Home / 98,656.30-136,145.37-56,222.02

Finding the Fourth Proportional to 98,656.30, 136,145.37 and 56,222.02

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Solution

The fourth proportional to 98,656.30, 136,145.37 and 56,222.02 is: 77,586.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,656.30 : 136,145.37 = 56,222.02 : x
  2. Step 2: Convert to fraction form
    98,656.30/136,145.37 = 56,222.02/x
  3. Step 3: Cross multiply
    98,656.30x = 136,145.37 × 56,222.02
  4. Step 4: Simplify right side
    98,656.30x = 7,654,367,715.05
  5. Step 5: Solve for x
    x = 7,654,367,715.05/98,656.30
  6. Step 6: Final answer
    x = 77,586.20

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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.