Home / 103,315.32-142,552.86-67,557.84

Finding the Fourth Proportional to 103,315.32, 142,552.86 and 67,557.84

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Solution

The fourth proportional to 103,315.32, 142,552.86 and 67,557.84 is: 93,215.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,315.32 : 142,552.86 = 67,557.84 : x
  2. Step 2: Convert to fraction form
    103,315.32/142,552.86 = 67,557.84/x
  3. Step 3: Cross multiply
    103,315.32x = 142,552.86 × 67,557.84
  4. Step 4: Simplify right side
    103,315.32x = 9,630,563,307.42
  5. Step 5: Solve for x
    x = 9,630,563,307.42/103,315.32
  6. Step 6: Final answer
    x = 93,215.25

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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.