Home / 105,738.16-145,918.38-60,430.21

Finding the Fourth Proportional to 105,738.16, 145,918.38 and 60,430.21

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Solution

The fourth proportional to 105,738.16, 145,918.38 and 60,430.21 is: 83,393.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,738.16 : 145,918.38 = 60,430.21 : x
  2. Step 2: Convert to fraction form
    105,738.16/145,918.38 = 60,430.21/x
  3. Step 3: Cross multiply
    105,738.16x = 145,918.38 × 60,430.21
  4. Step 4: Simplify right side
    105,738.16x = 8,817,878,346.26
  5. Step 5: Solve for x
    x = 8,817,878,346.26/105,738.16
  6. Step 6: Final answer
    x = 83,393.53

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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.