Home / 98,985.30-136,539.22-58,672.07

Finding the Fourth Proportional to 98,985.30, 136,539.22 and 58,672.07

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Solution

The fourth proportional to 98,985.30, 136,539.22 and 58,672.07 is: 80,931.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,985.30 : 136,539.22 = 58,672.07 : x
  2. Step 2: Convert to fraction form
    98,985.30/136,539.22 = 58,672.07/x
  3. Step 3: Cross multiply
    98,985.30x = 136,539.22 × 58,672.07
  4. Step 4: Simplify right side
    98,985.30x = 8,011,038,466.24
  5. Step 5: Solve for x
    x = 8,011,038,466.24/98,985.30
  6. Step 6: Final answer
    x = 80,931.60

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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.