Home / 134,434.30-185,518.05-74,003.40

Finding the Fourth Proportional to 134,434.30, 185,518.05 and 74,003.40

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Solution

The fourth proportional to 134,434.30, 185,518.05 and 74,003.40 is: 102,123.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,434.30 : 185,518.05 = 74,003.40 : x
  2. Step 2: Convert to fraction form
    134,434.30/185,518.05 = 74,003.40/x
  3. Step 3: Cross multiply
    134,434.30x = 185,518.05 × 74,003.40
  4. Step 4: Simplify right side
    134,434.30x = 13,728,966,461.37
  5. Step 5: Solve for x
    x = 13,728,966,461.37/134,434.30
  6. Step 6: Final answer
    x = 102,123.99

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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.