Home / 105,230.46-145,212.75-57,475.02

Finding the Fourth Proportional to 105,230.46, 145,212.75 and 57,475.02

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Solution

The fourth proportional to 105,230.46, 145,212.75 and 57,475.02 is: 79,312.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,230.46 : 145,212.75 = 57,475.02 : x
  2. Step 2: Convert to fraction form
    105,230.46/145,212.75 = 57,475.02/x
  3. Step 3: Cross multiply
    105,230.46x = 145,212.75 × 57,475.02
  4. Step 4: Simplify right side
    105,230.46x = 8,346,105,710.51
  5. Step 5: Solve for x
    x = 8,346,105,710.51/105,230.46
  6. Step 6: Final answer
    x = 79,312.64

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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.