Home / 126,181.16-174,124.10-72,428.32

Finding the Fourth Proportional to 126,181.16, 174,124.10 and 72,428.32

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Solution

The fourth proportional to 126,181.16, 174,124.10 and 72,428.32 is: 99,947.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,181.16 : 174,124.10 = 72,428.32 : x
  2. Step 2: Convert to fraction form
    126,181.16/174,124.10 = 72,428.32/x
  3. Step 3: Cross multiply
    126,181.16x = 174,124.10 × 72,428.32
  4. Step 4: Simplify right side
    126,181.16x = 12,611,516,034.51
  5. Step 5: Solve for x
    x = 12,611,516,034.51/126,181.16
  6. Step 6: Final answer
    x = 99,947.69

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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.