Home / 129,656.02-178,925.04-70,040.02

Finding the Fourth Proportional to 129,656.02, 178,925.04 and 70,040.02

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Solution

The fourth proportional to 129,656.02, 178,925.04 and 70,040.02 is: 96,655.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,656.02 : 178,925.04 = 70,040.02 : x
  2. Step 2: Convert to fraction form
    129,656.02/178,925.04 = 70,040.02/x
  3. Step 3: Cross multiply
    129,656.02x = 178,925.04 × 70,040.02
  4. Step 4: Simplify right side
    129,656.02x = 12,531,913,380.10
  5. Step 5: Solve for x
    x = 12,531,913,380.10/129,656.02
  6. Step 6: Final answer
    x = 96,655.08

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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.