Home / 128,543.10-193,045.05-93,522.30

Finding the Fourth Proportional to 128,543.10, 193,045.05 and 93,522.30

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Solution

The fourth proportional to 128,543.10, 193,045.05 and 93,522.30 is: 140,451.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,543.10 : 193,045.05 = 93,522.30 : x
  2. Step 2: Convert to fraction form
    128,543.10/193,045.05 = 93,522.30/x
  3. Step 3: Cross multiply
    128,543.10x = 193,045.05 × 93,522.30
  4. Step 4: Simplify right side
    128,543.10x = 18,054,017,079.62
  5. Step 5: Solve for x
    x = 18,054,017,079.62/128,543.10
  6. Step 6: Final answer
    x = 140,451.08

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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.