Home / 105,040.10-157,486.34-38,471.58

Finding the Fourth Proportional to 105,040.10, 157,486.34 and 38,471.58

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Solution

The fourth proportional to 105,040.10, 157,486.34 and 38,471.58 is: 57,680.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,040.10 : 157,486.34 = 38,471.58 : x
  2. Step 2: Convert to fraction form
    105,040.10/157,486.34 = 38,471.58/x
  3. Step 3: Cross multiply
    105,040.10x = 157,486.34 × 38,471.58
  4. Step 4: Simplify right side
    105,040.10x = 6,058,748,328.22
  5. Step 5: Solve for x
    x = 6,058,748,328.22/105,040.10
  6. Step 6: Final answer
    x = 57,680.34

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1.5x scale

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.