Home / 210,921.60-316,178.88-70,602.24

Finding the Fourth Proportional to 210,921.60, 316,178.88 and 70,602.24

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Solution

The fourth proportional to 210,921.60, 316,178.88 and 70,602.24 is: 105,835.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,921.60 : 316,178.88 = 70,602.24 : x
  2. Step 2: Convert to fraction form
    210,921.60/316,178.88 = 70,602.24/x
  3. Step 3: Cross multiply
    210,921.60x = 316,178.88 × 70,602.24
  4. Step 4: Simplify right side
    210,921.60x = 22,322,937,168.69
  5. Step 5: Solve for x
    x = 22,322,937,168.69/210,921.60
  6. Step 6: Final answer
    x = 105,835.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.