Home / 155,690.40-214,892.83-101,378.13

Finding the Fourth Proportional to 155,690.40, 214,892.83 and 101,378.13

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Solution

The fourth proportional to 155,690.40, 214,892.83 and 101,378.13 is: 139,927.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,690.40 : 214,892.83 = 101,378.13 : x
  2. Step 2: Convert to fraction form
    155,690.40/214,892.83 = 101,378.13/x
  3. Step 3: Cross multiply
    155,690.40x = 214,892.83 × 101,378.13
  4. Step 4: Simplify right side
    155,690.40x = 21,785,433,255.81
  5. Step 5: Solve for x
    x = 21,785,433,255.81/155,690.40
  6. Step 6: Final answer
    x = 139,927.92

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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.