Home / 105,301.48-145,349.22-101,799.40

Finding the Fourth Proportional to 105,301.48, 145,349.22 and 101,799.40

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Solution

The fourth proportional to 105,301.48, 145,349.22 and 101,799.40 is: 140,515.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,301.48 : 145,349.22 = 101,799.40 : x
  2. Step 2: Convert to fraction form
    105,301.48/145,349.22 = 101,799.40/x
  3. Step 3: Cross multiply
    105,301.48x = 145,349.22 × 101,799.40
  4. Step 4: Simplify right side
    105,301.48x = 14,796,463,386.47
  5. Step 5: Solve for x
    x = 14,796,463,386.47/105,301.48
  6. Step 6: Final answer
    x = 140,515.25

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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.