Home / 154,402.07-213,026.28-86,408.24

Finding the Fourth Proportional to 154,402.07, 213,026.28 and 86,408.24

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Solution

The fourth proportional to 154,402.07, 213,026.28 and 86,408.24 is: 119,216.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,402.07 : 213,026.28 = 86,408.24 : x
  2. Step 2: Convert to fraction form
    154,402.07/213,026.28 = 86,408.24/x
  3. Step 3: Cross multiply
    154,402.07x = 213,026.28 × 86,408.24
  4. Step 4: Simplify right side
    154,402.07x = 18,407,225,928.55
  5. Step 5: Solve for x
    x = 18,407,225,928.55/154,402.07
  6. Step 6: Final answer
    x = 119,216.19

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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.