Home / 105,341.84-145,336.12-59,987.66

Finding the Fourth Proportional to 105,341.84, 145,336.12 and 59,987.66

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Solution

The fourth proportional to 105,341.84, 145,336.12 and 59,987.66 is: 82,762.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,341.84 : 145,336.12 = 59,987.66 : x
  2. Step 2: Convert to fraction form
    105,341.84/145,336.12 = 59,987.66/x
  3. Step 3: Cross multiply
    105,341.84x = 145,336.12 × 59,987.66
  4. Step 4: Simplify right side
    105,341.84x = 8,718,373,452.34
  5. Step 5: Solve for x
    x = 8,718,373,452.34/105,341.84
  6. Step 6: Final answer
    x = 82,762.69

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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.