Home / 134,805.06-186,032.70-74,378.16

Finding the Fourth Proportional to 134,805.06, 186,032.70 and 74,378.16

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Solution

The fourth proportional to 134,805.06, 186,032.70 and 74,378.16 is: 102,642.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,805.06 : 186,032.70 = 74,378.16 : x
  2. Step 2: Convert to fraction form
    134,805.06/186,032.70 = 74,378.16/x
  3. Step 3: Cross multiply
    134,805.06x = 186,032.70 × 74,378.16
  4. Step 4: Simplify right side
    134,805.06x = 13,836,769,925.83
  5. Step 5: Solve for x
    x = 13,836,769,925.83/134,805.06
  6. Step 6: Final answer
    x = 102,642.81

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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.