Home / 103,985.51-143,500.01-56,238.84

Finding the Fourth Proportional to 103,985.51, 143,500.01 and 56,238.84

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Solution

The fourth proportional to 103,985.51, 143,500.01 and 56,238.84 is: 77,609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,985.51 : 143,500.01 = 56,238.84 : x
  2. Step 2: Convert to fraction form
    103,985.51/143,500.01 = 56,238.84/x
  3. Step 3: Cross multiply
    103,985.51x = 143,500.01 × 56,238.84
  4. Step 4: Simplify right side
    103,985.51x = 8,070,273,821.19
  5. Step 5: Solve for x
    x = 8,070,273,821.19/103,985.51
  6. Step 6: Final answer
    x = 77,609.60

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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.