Home / 137,946.32-190,380.12-77,522.48

Finding the Fourth Proportional to 137,946.32, 190,380.12 and 77,522.48

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Solution

The fourth proportional to 137,946.32, 190,380.12 and 77,522.48 is: 106,989.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,946.32 : 190,380.12 = 77,522.48 : x
  2. Step 2: Convert to fraction form
    137,946.32/190,380.12 = 77,522.48/x
  3. Step 3: Cross multiply
    137,946.32x = 190,380.12 × 77,522.48
  4. Step 4: Simplify right side
    137,946.32x = 14,758,739,045.10
  5. Step 5: Solve for x
    x = 14,758,739,045.10/137,946.32
  6. Step 6: Final answer
    x = 106,989.00

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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.