Home / 105,484.51-145,589.37-79,946.33

Finding the Fourth Proportional to 105,484.51, 145,589.37 and 79,946.33

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Solution

The fourth proportional to 105,484.51, 145,589.37 and 79,946.33 is: 110,341.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,484.51 : 145,589.37 = 79,946.33 : x
  2. Step 2: Convert to fraction form
    105,484.51/145,589.37 = 79,946.33/x
  3. Step 3: Cross multiply
    105,484.51x = 145,589.37 × 79,946.33
  4. Step 4: Simplify right side
    105,484.51x = 11,639,335,818.51
  5. Step 5: Solve for x
    x = 11,639,335,818.51/105,484.51
  6. Step 6: Final answer
    x = 110,341.66

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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.