Home / 144,274.37-216,343.45-84,320.05

Finding the Fourth Proportional to 144,274.37, 216,343.45 and 84,320.05

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Solution

The fourth proportional to 144,274.37, 216,343.45 and 84,320.05 is: 126,440.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,274.37 : 216,343.45 = 84,320.05 : x
  2. Step 2: Convert to fraction form
    144,274.37/216,343.45 = 84,320.05/x
  3. Step 3: Cross multiply
    144,274.37x = 216,343.45 × 84,320.05
  4. Step 4: Simplify right side
    144,274.37x = 18,242,090,521.17
  5. Step 5: Solve for x
    x = 18,242,090,521.17/144,274.37
  6. Step 6: Final answer
    x = 126,440.27

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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.