Home / 101,480.32-140,039.98-56,160.19

Finding the Fourth Proportional to 101,480.32, 140,039.98 and 56,160.19

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Solution

The fourth proportional to 101,480.32, 140,039.98 and 56,160.19 is: 77,499.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,480.32 : 140,039.98 = 56,160.19 : x
  2. Step 2: Convert to fraction form
    101,480.32/140,039.98 = 56,160.19/x
  3. Step 3: Cross multiply
    101,480.32x = 140,039.98 × 56,160.19
  4. Step 4: Simplify right side
    101,480.32x = 7,864,671,884.40
  5. Step 5: Solve for x
    x = 7,864,671,884.40/101,480.32
  6. Step 6: Final answer
    x = 77,499.48

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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.