Home / 147,646.62-203,688.43-90,288.45

Finding the Fourth Proportional to 147,646.62, 203,688.43 and 90,288.45

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Solution

The fourth proportional to 147,646.62, 203,688.43 and 90,288.45 is: 124,558.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,646.62 : 203,688.43 = 90,288.45 : x
  2. Step 2: Convert to fraction form
    147,646.62/203,688.43 = 90,288.45/x
  3. Step 3: Cross multiply
    147,646.62x = 203,688.43 × 90,288.45
  4. Step 4: Simplify right side
    147,646.62x = 18,390,712,401.91
  5. Step 5: Solve for x
    x = 18,390,712,401.91/147,646.62
  6. Step 6: Final answer
    x = 124,558.98

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1.5x scale

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.