Home / 145,987.06-201,740.61-105,284.76

Finding the Fourth Proportional to 145,987.06, 201,740.61 and 105,284.76

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Solution

The fourth proportional to 145,987.06, 201,740.61 and 105,284.76 is: 145,493.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,987.06 : 201,740.61 = 105,284.76 : x
  2. Step 2: Convert to fraction form
    145,987.06/201,740.61 = 105,284.76/x
  3. Step 3: Cross multiply
    145,987.06x = 201,740.61 × 105,284.76
  4. Step 4: Simplify right side
    145,987.06x = 21,240,211,886.96
  5. Step 5: Solve for x
    x = 21,240,211,886.96/145,987.06
  6. Step 6: Final answer
    x = 145,493.80

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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.