Home / 140,407.36-193,762.25-76,745.15

Finding the Fourth Proportional to 140,407.36, 193,762.25 and 76,745.15

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Solution

The fourth proportional to 140,407.36, 193,762.25 and 76,745.15 is: 105,908.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,407.36 : 193,762.25 = 76,745.15 : x
  2. Step 2: Convert to fraction form
    140,407.36/193,762.25 = 76,745.15/x
  3. Step 3: Cross multiply
    140,407.36x = 193,762.25 × 76,745.15
  4. Step 4: Simplify right side
    140,407.36x = 14,870,312,602.45
  5. Step 5: Solve for x
    x = 14,870,312,602.45/140,407.36
  6. Step 6: Final answer
    x = 105,908.36

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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.