Home / 147,643.90-221,465.85-102,543.10

Finding the Fourth Proportional to 147,643.90, 221,465.85 and 102,543.10

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Solution

The fourth proportional to 147,643.90, 221,465.85 and 102,543.10 is: 153,814.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,643.90 : 221,465.85 = 102,543.10 : x
  2. Step 2: Convert to fraction form
    147,643.90/221,465.85 = 102,543.10/x
  3. Step 3: Cross multiply
    147,643.90x = 221,465.85 × 102,543.10
  4. Step 4: Simplify right side
    147,643.90x = 22,709,794,803.14
  5. Step 5: Solve for x
    x = 22,709,794,803.14/147,643.90
  6. Step 6: Final answer
    x = 153,814.65

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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.