Home / 154,363.59-212,817.56-111,307.05

Finding the Fourth Proportional to 154,363.59, 212,817.56 and 111,307.05

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Solution

The fourth proportional to 154,363.59, 212,817.56 and 111,307.05 is: 153,456.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,363.59 : 212,817.56 = 111,307.05 : x
  2. Step 2: Convert to fraction form
    154,363.59/212,817.56 = 111,307.05/x
  3. Step 3: Cross multiply
    154,363.59x = 212,817.56 × 111,307.05
  4. Step 4: Simplify right side
    154,363.59x = 23,688,094,235.26
  5. Step 5: Solve for x
    x = 23,688,094,235.26/154,363.59
  6. Step 6: Final answer
    x = 153,456.49

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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.