Home / 134,290.90-185,312.37-76,930.45

Finding the Fourth Proportional to 134,290.90, 185,312.37 and 76,930.45

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Solution

The fourth proportional to 134,290.90, 185,312.37 and 76,930.45 is: 106,158.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,290.90 : 185,312.37 = 76,930.45 : x
  2. Step 2: Convert to fraction form
    134,290.90/185,312.37 = 76,930.45/x
  3. Step 3: Cross multiply
    134,290.90x = 185,312.37 × 76,930.45
  4. Step 4: Simplify right side
    134,290.90x = 14,256,164,014.67
  5. Step 5: Solve for x
    x = 14,256,164,014.67/134,290.90
  6. Step 6: Final answer
    x = 106,158.82

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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.