Home / 112,408.16-155,049.80-72,058.01

Finding the Fourth Proportional to 112,408.16, 155,049.80 and 72,058.01

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Solution

The fourth proportional to 112,408.16, 155,049.80 and 72,058.01 is: 99,392.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,408.16 : 155,049.80 = 72,058.01 : x
  2. Step 2: Convert to fraction form
    112,408.16/155,049.80 = 72,058.01/x
  3. Step 3: Cross multiply
    112,408.16x = 155,049.80 × 72,058.01
  4. Step 4: Simplify right side
    112,408.16x = 11,172,578,903.36
  5. Step 5: Solve for x
    x = 11,172,578,903.36/112,408.16
  6. Step 6: Final answer
    x = 99,392.96

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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.