Home / 142,225.32-196,276.65-81,795.95

Finding the Fourth Proportional to 142,225.32, 196,276.65 and 81,795.95

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Solution

The fourth proportional to 142,225.32, 196,276.65 and 81,795.95 is: 112,881.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,225.32 : 196,276.65 = 81,795.95 : x
  2. Step 2: Convert to fraction form
    142,225.32/196,276.65 = 81,795.95/x
  3. Step 3: Cross multiply
    142,225.32x = 196,276.65 × 81,795.95
  4. Step 4: Simplify right side
    142,225.32x = 16,054,634,068.18
  5. Step 5: Solve for x
    x = 16,054,634,068.18/142,225.32
  6. Step 6: Final answer
    x = 112,881.69

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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.