Home / 103,268.64-142,509.81-57,945.72

Finding the Fourth Proportional to 103,268.64, 142,509.81 and 57,945.72

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Solution

The fourth proportional to 103,268.64, 142,509.81 and 57,945.72 is: 79,964.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,268.64 : 142,509.81 = 57,945.72 : x
  2. Step 2: Convert to fraction form
    103,268.64/142,509.81 = 57,945.72/x
  3. Step 3: Cross multiply
    103,268.64x = 142,509.81 × 57,945.72
  4. Step 4: Simplify right side
    103,268.64x = 8,257,833,547.51
  5. Step 5: Solve for x
    x = 8,257,833,547.51/103,268.64
  6. Step 6: Final answer
    x = 79,964.58

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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.