Home / 105,595.22-145,715.28-57,840.26

Finding the Fourth Proportional to 105,595.22, 145,715.28 and 57,840.26

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Solution

The fourth proportional to 105,595.22, 145,715.28 and 57,840.26 is: 79,816.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,595.22 : 145,715.28 = 57,840.26 : x
  2. Step 2: Convert to fraction form
    105,595.22/145,715.28 = 57,840.26/x
  3. Step 3: Cross multiply
    105,595.22x = 145,715.28 × 57,840.26
  4. Step 4: Simplify right side
    105,595.22x = 8,428,209,681.17
  5. Step 5: Solve for x
    x = 8,428,209,681.17/105,595.22
  6. Step 6: Final answer
    x = 79,816.20

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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.