Home / 153,727.20-212,111.28-93,329.64

Finding the Fourth Proportional to 153,727.20, 212,111.28 and 93,329.64

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Solution

The fourth proportional to 153,727.20, 212,111.28 and 93,329.64 is: 128,775.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,727.20 : 212,111.28 = 93,329.64 : x
  2. Step 2: Convert to fraction form
    153,727.20/212,111.28 = 93,329.64/x
  3. Step 3: Cross multiply
    153,727.20x = 212,111.28 × 93,329.64
  4. Step 4: Simplify right side
    153,727.20x = 19,796,269,402.34
  5. Step 5: Solve for x
    x = 19,796,269,402.34/153,727.20
  6. Step 6: Final answer
    x = 128,775.32

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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.