Home / 134,870.90-186,123.20-74,440.22

Finding the Fourth Proportional to 134,870.90, 186,123.20 and 74,440.22

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Solution

The fourth proportional to 134,870.90, 186,123.20 and 74,440.22 is: 102,728.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,870.90 : 186,123.20 = 74,440.22 : x
  2. Step 2: Convert to fraction form
    134,870.90/186,123.20 = 74,440.22/x
  3. Step 3: Cross multiply
    134,870.90x = 186,123.20 × 74,440.22
  4. Step 4: Simplify right side
    134,870.90x = 13,855,050,652.29
  5. Step 5: Solve for x
    x = 13,855,050,652.29/134,870.90
  6. Step 6: Final answer
    x = 102,728.25

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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.