Home / 147,501.90-221,261.09-42,318

Finding the Fourth Proportional to 147,501.90, 221,261.09 and 42,318

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Solution

The fourth proportional to 147,501.90, 221,261.09 and 42,318 is: 63,479.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,501.90 : 221,261.09 = 42,318 : x
  2. Step 2: Convert to fraction form
    147,501.90/221,261.09 = 42,318/x
  3. Step 3: Cross multiply
    147,501.90x = 221,261.09 × 42,318
  4. Step 4: Simplify right side
    147,501.90x = 9,363,326,595.03
  5. Step 5: Solve for x
    x = 9,363,326,595.03/147,501.90
  6. Step 6: Final answer
    x = 63,479.36

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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.