Home / 131,622.09-197,432.98-42,875.45

Finding the Fourth Proportional to 131,622.09, 197,432.98 and 42,875.45

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Solution

The fourth proportional to 131,622.09, 197,432.98 and 42,875.45 is: 64,313.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,622.09 : 197,432.98 = 42,875.45 : x
  2. Step 2: Convert to fraction form
    131,622.09/197,432.98 = 42,875.45/x
  3. Step 3: Cross multiply
    131,622.09x = 197,432.98 × 42,875.45
  4. Step 4: Simplify right side
    131,622.09x = 8,465,028,489.91
  5. Step 5: Solve for x
    x = 8,465,028,489.91/131,622.09
  6. Step 6: Final answer
    x = 64,313.13

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1.5x scale

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.