Home / 134,642.10-185,807.40-74,215.11

Finding the Fourth Proportional to 134,642.10, 185,807.40 and 74,215.11

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Solution

The fourth proportional to 134,642.10, 185,807.40 and 74,215.11 is: 102,417.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,642.10 : 185,807.40 = 74,215.11 : x
  2. Step 2: Convert to fraction form
    134,642.10/185,807.40 = 74,215.11/x
  3. Step 3: Cross multiply
    134,642.10x = 185,807.40 × 74,215.11
  4. Step 4: Simplify right side
    134,642.10x = 13,789,716,629.81
  5. Step 5: Solve for x
    x = 13,789,716,629.81/134,642.10
  6. Step 6: Final answer
    x = 102,417.57

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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.