Home / 126,623.16-174,774.51-78,848.28

Finding the Fourth Proportional to 126,623.16, 174,774.51 and 78,848.28

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Solution

The fourth proportional to 126,623.16, 174,774.51 and 78,848.28 is: 108,832.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,623.16 : 174,774.51 = 78,848.28 : x
  2. Step 2: Convert to fraction form
    126,623.16/174,774.51 = 78,848.28/x
  3. Step 3: Cross multiply
    126,623.16x = 174,774.51 × 78,848.28
  4. Step 4: Simplify right side
    126,623.16x = 13,780,669,501.34
  5. Step 5: Solve for x
    x = 13,780,669,501.34/126,623.16
  6. Step 6: Final answer
    x = 108,832.14

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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.