Home / 147,038.40-202,904.58-81,623.87

Finding the Fourth Proportional to 147,038.40, 202,904.58 and 81,623.87

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Solution

The fourth proportional to 147,038.40, 202,904.58 and 81,623.87 is: 112,636.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,038.40 : 202,904.58 = 81,623.87 : x
  2. Step 2: Convert to fraction form
    147,038.40/202,904.58 = 81,623.87/x
  3. Step 3: Cross multiply
    147,038.40x = 202,904.58 × 81,623.87
  4. Step 4: Simplify right side
    147,038.40x = 16,561,856,045.80
  5. Step 5: Solve for x
    x = 16,561,856,045.80/147,038.40
  6. Step 6: Final answer
    x = 112,636.26

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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.