Home / 132,815.51-183,280.06-72,384.86

Finding the Fourth Proportional to 132,815.51, 183,280.06 and 72,384.86

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Solution

The fourth proportional to 132,815.51, 183,280.06 and 72,384.86 is: 99,888.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,815.51 : 183,280.06 = 72,384.86 : x
  2. Step 2: Convert to fraction form
    132,815.51/183,280.06 = 72,384.86/x
  3. Step 3: Cross multiply
    132,815.51x = 183,280.06 × 72,384.86
  4. Step 4: Simplify right side
    132,815.51x = 13,266,700,798.04
  5. Step 5: Solve for x
    x = 13,266,700,798.04/132,815.51
  6. Step 6: Final answer
    x = 99,888.19

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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.