Home / 145,417.71-218,243.22-75,317.07

Finding the Fourth Proportional to 145,417.71, 218,243.22 and 75,317.07

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Solution

The fourth proportional to 145,417.71, 218,243.22 and 75,317.07 is: 113,036.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,417.71 : 218,243.22 = 75,317.07 : x
  2. Step 2: Convert to fraction form
    145,417.71/218,243.22 = 75,317.07/x
  3. Step 3: Cross multiply
    145,417.71x = 218,243.22 × 75,317.07
  4. Step 4: Simplify right side
    145,417.71x = 16,437,439,877.77
  5. Step 5: Solve for x
    x = 16,437,439,877.77/145,417.71
  6. Step 6: Final answer
    x = 113,036.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.