Home / 126,750.38-190,312.47-70,700.00

Finding the Fourth Proportional to 126,750.38, 190,312.47 and 70,700.00

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Solution

The fourth proportional to 126,750.38, 190,312.47 and 70,700.00 is: 106,154.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,750.38 : 190,312.47 = 70,700.00 : x
  2. Step 2: Convert to fraction form
    126,750.38/190,312.47 = 70,700.00/x
  3. Step 3: Cross multiply
    126,750.38x = 190,312.47 × 70,700.00
  4. Step 4: Simplify right side
    126,750.38x = 13,455,090,677.44
  5. Step 5: Solve for x
    x = 13,455,090,677.44/126,750.38
  6. Step 6: Final answer
    x = 106,154.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.