Home / 93,656.40-140,362.02-81,780.24

Finding the Fourth Proportional to 93,656.40, 140,362.02 and 81,780.24

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Solution

The fourth proportional to 93,656.40, 140,362.02 and 81,780.24 is: 122,563.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,656.40 : 140,362.02 = 81,780.24 : x
  2. Step 2: Convert to fraction form
    93,656.40/140,362.02 = 81,780.24/x
  3. Step 3: Cross multiply
    93,656.40x = 140,362.02 × 81,780.24
  4. Step 4: Simplify right side
    93,656.40x = 11,478,839,682.48
  5. Step 5: Solve for x
    x = 11,478,839,682.48/93,656.40
  6. Step 6: Final answer
    x = 122,563.32

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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.