Home / 93,142.19-128,466.90-59,121.12

Finding the Fourth Proportional to 93,142.19, 128,466.90 and 59,121.12

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Solution

The fourth proportional to 93,142.19, 128,466.90 and 59,121.12 is: 81,543.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,142.19 : 128,466.90 = 59,121.12 : x
  2. Step 2: Convert to fraction form
    93,142.19/128,466.90 = 59,121.12/x
  3. Step 3: Cross multiply
    93,142.19x = 128,466.90 × 59,121.12
  4. Step 4: Simplify right side
    93,142.19x = 7,595,107,010.93
  5. Step 5: Solve for x
    x = 7,595,107,010.93/93,142.19
  6. Step 6: Final answer
    x = 81,543.15

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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.