Home / 103,877.36-143,350.70-56,130.69

Finding the Fourth Proportional to 103,877.36, 143,350.70 and 56,130.69

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Solution

The fourth proportional to 103,877.36, 143,350.70 and 56,130.69 is: 77,460.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,877.36 : 143,350.70 = 56,130.69 : x
  2. Step 2: Convert to fraction form
    103,877.36/143,350.70 = 56,130.69/x
  3. Step 3: Cross multiply
    103,877.36x = 143,350.70 × 56,130.69
  4. Step 4: Simplify right side
    103,877.36x = 8,046,373,959.89
  5. Step 5: Solve for x
    x = 8,046,373,959.89/103,877.36
  6. Step 6: Final answer
    x = 77,460.32

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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.