Home / 147,095.53-202,985.41-81,680.30

Finding the Fourth Proportional to 147,095.53, 202,985.41 and 81,680.30

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Solution

The fourth proportional to 147,095.53, 202,985.41 and 81,680.30 is: 112,715.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,095.53 : 202,985.41 = 81,680.30 : x
  2. Step 2: Convert to fraction form
    147,095.53/202,985.41 = 81,680.30/x
  3. Step 3: Cross multiply
    147,095.53x = 202,985.41 × 81,680.30
  4. Step 4: Simplify right side
    147,095.53x = 16,579,909,184.42
  5. Step 5: Solve for x
    x = 16,579,909,184.42/147,095.53
  6. Step 6: Final answer
    x = 112,715.25

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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.