Home / 145,867.51-201,022.35-105,512.83

Finding the Fourth Proportional to 145,867.51, 201,022.35 and 105,512.83

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Solution

The fourth proportional to 145,867.51, 201,022.35 and 105,512.83 is: 145,408.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,867.51 : 201,022.35 = 105,512.83 : x
  2. Step 2: Convert to fraction form
    145,867.51/201,022.35 = 105,512.83/x
  3. Step 3: Cross multiply
    145,867.51x = 201,022.35 × 105,512.83
  4. Step 4: Simplify right side
    145,867.51x = 21,210,436,036.64
  5. Step 5: Solve for x
    x = 21,210,436,036.64/145,867.51
  6. Step 6: Final answer
    x = 145,408.92

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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.