Home / 153,431.89-229,112.63-125,408.32

Finding the Fourth Proportional to 153,431.89, 229,112.63 and 125,408.32

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Solution

The fourth proportional to 153,431.89, 229,112.63 and 125,408.32 is: 187,266.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,431.89 : 229,112.63 = 125,408.32 : x
  2. Step 2: Convert to fraction form
    153,431.89/229,112.63 = 125,408.32/x
  3. Step 3: Cross multiply
    153,431.89x = 229,112.63 × 125,408.32
  4. Step 4: Simplify right side
    153,431.89x = 28,732,629,994.96
  5. Step 5: Solve for x
    x = 28,732,629,994.96/153,431.89
  6. Step 6: Final answer
    x = 187,266.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.