Home / 133,108.18-183,667.60-78,652.76

Finding the Fourth Proportional to 133,108.18, 183,667.60 and 78,652.76

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Solution

The fourth proportional to 133,108.18, 183,667.60 and 78,652.76 is: 108,528.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,108.18 : 183,667.60 = 78,652.76 : x
  2. Step 2: Convert to fraction form
    133,108.18/183,667.60 = 78,652.76/x
  3. Step 3: Cross multiply
    133,108.18x = 183,667.60 × 78,652.76
  4. Step 4: Simplify right side
    133,108.18x = 14,445,963,925.11
  5. Step 5: Solve for x
    x = 14,445,963,925.11/133,108.18
  6. Step 6: Final answer
    x = 108,528.00

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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.