Home / 156,688.45-216,230.06-85,068.48

Finding the Fourth Proportional to 156,688.45, 216,230.06 and 85,068.48

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Solution

The fourth proportional to 156,688.45, 216,230.06 and 85,068.48 is: 117,394.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,688.45 : 216,230.06 = 85,068.48 : x
  2. Step 2: Convert to fraction form
    156,688.45/216,230.06 = 85,068.48/x
  3. Step 3: Cross multiply
    156,688.45x = 216,230.06 × 85,068.48
  4. Step 4: Simplify right side
    156,688.45x = 18,394,362,534.51
  5. Step 5: Solve for x
    x = 18,394,362,534.51/156,688.45
  6. Step 6: Final answer
    x = 117,394.50

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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.