Home / 104,259.15-143,877.87-56,512.28

Finding the Fourth Proportional to 104,259.15, 143,877.87 and 56,512.28

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Solution

The fourth proportional to 104,259.15, 143,877.87 and 56,512.28 is: 77,987.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,259.15 : 143,877.87 = 56,512.28 : x
  2. Step 2: Convert to fraction form
    104,259.15/143,877.87 = 56,512.28/x
  3. Step 3: Cross multiply
    104,259.15x = 143,877.87 × 56,512.28
  4. Step 4: Simplify right side
    104,259.15x = 8,130,866,834.94
  5. Step 5: Solve for x
    x = 8,130,866,834.94/104,259.15
  6. Step 6: Final answer
    x = 77,987.08

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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.