Home / 126,180.16-174,122.72-72,427.32

Finding the Fourth Proportional to 126,180.16, 174,122.72 and 72,427.32

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Solution

The fourth proportional to 126,180.16, 174,122.72 and 72,427.32 is: 99,946.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,180.16 : 174,122.72 = 72,427.32 : x
  2. Step 2: Convert to fraction form
    126,180.16/174,122.72 = 72,427.32/x
  3. Step 3: Cross multiply
    126,180.16x = 174,122.72 × 72,427.32
  4. Step 4: Simplify right side
    126,180.16x = 12,611,241,960.71
  5. Step 5: Solve for x
    x = 12,611,241,960.71/126,180.16
  6. Step 6: Final answer
    x = 99,946.31

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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.