Home / 103,710.19-155,530.69-40,513.93

Finding the Fourth Proportional to 103,710.19, 155,530.69 and 40,513.93

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Solution

The fourth proportional to 103,710.19, 155,530.69 and 40,513.93 is: 60,757.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,710.19 : 155,530.69 = 40,513.93 : x
  2. Step 2: Convert to fraction form
    103,710.19/155,530.69 = 40,513.93/x
  3. Step 3: Cross multiply
    103,710.19x = 155,530.69 × 40,513.93
  4. Step 4: Simplify right side
    103,710.19x = 6,301,159,487.51
  5. Step 5: Solve for x
    x = 6,301,159,487.51/103,710.19
  6. Step 6: Final answer
    x = 60,757.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.