Home / 178,000.28-245,640.47-97,428.23

Finding the Fourth Proportional to 178,000.28, 245,640.47 and 97,428.23

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Solution

The fourth proportional to 178,000.28, 245,640.47 and 97,428.23 is: 134,451.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,000.28 : 245,640.47 = 97,428.23 : x
  2. Step 2: Convert to fraction form
    178,000.28/245,640.47 = 97,428.23/x
  3. Step 3: Cross multiply
    178,000.28x = 245,640.47 × 97,428.23
  4. Step 4: Simplify right side
    178,000.28x = 23,932,314,493.12
  5. Step 5: Solve for x
    x = 23,932,314,493.12/178,000.28
  6. Step 6: Final answer
    x = 134,451.00

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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.