Home / 155,612.12-233,233.65-139,742.70

Finding the Fourth Proportional to 155,612.12, 233,233.65 and 139,742.70

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Solution

The fourth proportional to 155,612.12, 233,233.65 and 139,742.70 is: 209,448.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,612.12 : 233,233.65 = 139,742.70 : x
  2. Step 2: Convert to fraction form
    155,612.12/233,233.65 = 139,742.70/x
  3. Step 3: Cross multiply
    155,612.12x = 233,233.65 × 139,742.70
  4. Step 4: Simplify right side
    155,612.12x = 32,592,699,981.86
  5. Step 5: Solve for x
    x = 32,592,699,981.86/155,612.12
  6. Step 6: Final answer
    x = 209,448.35

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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.