Home / 152,218.24-228,259.86-81,127.63

Finding the Fourth Proportional to 152,218.24, 228,259.86 and 81,127.63

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Solution

The fourth proportional to 152,218.24, 228,259.86 and 81,127.63 is: 121,655.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,218.24 : 228,259.86 = 81,127.63 : x
  2. Step 2: Convert to fraction form
    152,218.24/228,259.86 = 81,127.63/x
  3. Step 3: Cross multiply
    152,218.24x = 228,259.86 × 81,127.63
  4. Step 4: Simplify right side
    152,218.24x = 18,518,181,465.93
  5. Step 5: Solve for x
    x = 18,518,181,465.93/152,218.24
  6. Step 6: Final answer
    x = 121,655.47

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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.