Home / 105,475.30-145,533.36-62,468.28

Finding the Fourth Proportional to 105,475.30, 145,533.36 and 62,468.28

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Solution

The fourth proportional to 105,475.30, 145,533.36 and 62,468.28 is: 86,192.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,475.30 : 145,533.36 = 62,468.28 : x
  2. Step 2: Convert to fraction form
    105,475.30/145,533.36 = 62,468.28/x
  3. Step 3: Cross multiply
    105,475.30x = 145,533.36 × 62,468.28
  4. Step 4: Simplify right side
    105,475.30x = 9,091,218,681.82
  5. Step 5: Solve for x
    x = 9,091,218,681.82/105,475.30
  6. Step 6: Final answer
    x = 86,192.87

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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.