Home / 191,123.70-263,727.81-105,068.49

Finding the Fourth Proportional to 191,123.70, 263,727.81 and 105,068.49

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Solution

The fourth proportional to 191,123.70, 263,727.81 and 105,068.49 is: 144,981.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,123.70 : 263,727.81 = 105,068.49 : x
  2. Step 2: Convert to fraction form
    191,123.70/263,727.81 = 105,068.49/x
  3. Step 3: Cross multiply
    191,123.70x = 263,727.81 × 105,068.49
  4. Step 4: Simplify right side
    191,123.70x = 27,709,482,767.71
  5. Step 5: Solve for x
    x = 27,709,482,767.71/191,123.70
  6. Step 6: Final answer
    x = 144,981.93

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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.