Home / 137,887.28-190,263.70-77,446.34

Finding the Fourth Proportional to 137,887.28, 190,263.70 and 77,446.34

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Solution

The fourth proportional to 137,887.28, 190,263.70 and 77,446.34 is: 106,864.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,887.28 : 190,263.70 = 77,446.34 : x
  2. Step 2: Convert to fraction form
    137,887.28/190,263.70 = 77,446.34/x
  3. Step 3: Cross multiply
    137,887.28x = 190,263.70 × 77,446.34
  4. Step 4: Simplify right side
    137,887.28x = 14,735,227,199.86
  5. Step 5: Solve for x
    x = 14,735,227,199.86/137,887.28
  6. Step 6: Final answer
    x = 106,864.30

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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.