Home / 126,312.36-174,312.48-69,723.72

Finding the Fourth Proportional to 126,312.36, 174,312.48 and 69,723.72

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Solution

The fourth proportional to 126,312.36, 174,312.48 and 69,723.72 is: 96,219.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,312.36 : 174,312.48 = 69,723.72 : x
  2. Step 2: Convert to fraction form
    126,312.36/174,312.48 = 69,723.72/x
  3. Step 3: Cross multiply
    126,312.36x = 174,312.48 × 69,723.72
  4. Step 4: Simplify right side
    126,312.36x = 12,153,714,548.03
  5. Step 5: Solve for x
    x = 12,153,714,548.03/126,312.36
  6. Step 6: Final answer
    x = 96,219.52

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1.5x scale

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.