Home / 153,158.06-229,783.73-78,330.66

Finding the Fourth Proportional to 153,158.06, 229,783.73 and 78,330.66

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Solution

The fourth proportional to 153,158.06, 229,783.73 and 78,330.66 is: 117,519.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,158.06 : 229,783.73 = 78,330.66 : x
  2. Step 2: Convert to fraction form
    153,158.06/229,783.73 = 78,330.66/x
  3. Step 3: Cross multiply
    153,158.06x = 229,783.73 × 78,330.66
  4. Step 4: Simplify right side
    153,158.06x = 17,999,110,836.51
  5. Step 5: Solve for x
    x = 17,999,110,836.51/153,158.06
  6. Step 6: Final answer
    x = 117,519.84

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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.