Home / 105,305.06-145,320.77-59,983.03

Finding the Fourth Proportional to 105,305.06, 145,320.77 and 59,983.03

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Solution

The fourth proportional to 105,305.06, 145,320.77 and 59,983.03 is: 82,776.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,305.06 : 145,320.77 = 59,983.03 : x
  2. Step 2: Convert to fraction form
    105,305.06/145,320.77 = 59,983.03/x
  3. Step 3: Cross multiply
    105,305.06x = 145,320.77 × 59,983.03
  4. Step 4: Simplify right side
    105,305.06x = 8,716,779,379.93
  5. Step 5: Solve for x
    x = 8,716,779,379.93/105,305.06
  6. Step 6: Final answer
    x = 82,776.45

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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.