Home / 145,970.40-218,936.78-46,140.69

Finding the Fourth Proportional to 145,970.40, 218,936.78 and 46,140.69

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Solution

The fourth proportional to 145,970.40, 218,936.78 and 46,140.69 is: 69,205.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,970.40 : 218,936.78 = 46,140.69 : x
  2. Step 2: Convert to fraction form
    145,970.40/218,936.78 = 46,140.69/x
  3. Step 3: Cross multiply
    145,970.40x = 218,936.78 × 46,140.69
  4. Step 4: Simplify right side
    145,970.40x = 10,101,893,864.87
  5. Step 5: Solve for x
    x = 10,101,893,864.87/145,970.40
  6. Step 6: Final answer
    x = 69,205.08

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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.