Home / 105,718.32-145,894.68-60,386.64

Finding the Fourth Proportional to 105,718.32, 145,894.68 and 60,386.64

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Solution

The fourth proportional to 105,718.32, 145,894.68 and 60,386.64 is: 83,335.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,718.32 : 145,894.68 = 60,386.64 : x
  2. Step 2: Convert to fraction form
    105,718.32/145,894.68 = 60,386.64/x
  3. Step 3: Cross multiply
    105,718.32x = 145,894.68 × 60,386.64
  4. Step 4: Simplify right side
    105,718.32x = 8,810,089,519.08
  5. Step 5: Solve for x
    x = 8,810,089,519.08/105,718.32
  6. Step 6: Final answer
    x = 83,335.50

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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.