Home / 147,928.30-221,746.65-72,987.10

Finding the Fourth Proportional to 147,928.30, 221,746.65 and 72,987.10

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Solution

The fourth proportional to 147,928.30, 221,746.65 and 72,987.10 is: 109,408.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,928.30 : 221,746.65 = 72,987.10 : x
  2. Step 2: Convert to fraction form
    147,928.30/221,746.65 = 72,987.10/x
  3. Step 3: Cross multiply
    147,928.30x = 221,746.65 × 72,987.10
  4. Step 4: Simplify right side
    147,928.30x = 16,184,644,918.22
  5. Step 5: Solve for x
    x = 16,184,644,918.22/147,928.30
  6. Step 6: Final answer
    x = 109,408.71

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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.