Home / 103,925.16-143,415.66-57,985.20

Finding the Fourth Proportional to 103,925.16, 143,415.66 and 57,985.20

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Solution

The fourth proportional to 103,925.16, 143,415.66 and 57,985.20 is: 80,018.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,925.16 : 143,415.66 = 57,985.20 : x
  2. Step 2: Convert to fraction form
    103,925.16/143,415.66 = 57,985.20/x
  3. Step 3: Cross multiply
    103,925.16x = 143,415.66 × 57,985.20
  4. Step 4: Simplify right side
    103,925.16x = 8,315,985,728.23
  5. Step 5: Solve for x
    x = 8,315,985,728.23/103,925.16
  6. Step 6: Final answer
    x = 80,018.98

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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.