Home / 105,595.09-145,721.23-63,153.63

Finding the Fourth Proportional to 105,595.09, 145,721.23 and 63,153.63

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Solution

The fourth proportional to 105,595.09, 145,721.23 and 63,153.63 is: 87,152.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,595.09 : 145,721.23 = 63,153.63 : x
  2. Step 2: Convert to fraction form
    105,595.09/145,721.23 = 63,153.63/x
  3. Step 3: Cross multiply
    105,595.09x = 145,721.23 × 63,153.63
  4. Step 4: Simplify right side
    105,595.09x = 9,202,824,642.56
  5. Step 5: Solve for x
    x = 9,202,824,642.56/105,595.09
  6. Step 6: Final answer
    x = 87,152.01

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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.