Home / 123,315.02-170,170.47-68,870.00

Finding the Fourth Proportional to 123,315.02, 170,170.47 and 68,870.00

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Solution

The fourth proportional to 123,315.02, 170,170.47 and 68,870.00 is: 95,038.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,315.02 : 170,170.47 = 68,870.00 : x
  2. Step 2: Convert to fraction form
    123,315.02/170,170.47 = 68,870.00/x
  3. Step 3: Cross multiply
    123,315.02x = 170,170.47 × 68,870.00
  4. Step 4: Simplify right side
    123,315.02x = 11,719,639,737.12
  5. Step 5: Solve for x
    x = 11,719,639,737.12/123,315.02
  6. Step 6: Final answer
    x = 95,038.22

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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.