Home / 142,823.70-214,265.51-42,991.20

Finding the Fourth Proportional to 142,823.70, 214,265.51 and 42,991.20

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Solution

The fourth proportional to 142,823.70, 214,265.51 and 42,991.20 is: 64,495.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,823.70 : 214,265.51 = 42,991.20 : x
  2. Step 2: Convert to fraction form
    142,823.70/214,265.51 = 42,991.20/x
  3. Step 3: Cross multiply
    142,823.70x = 214,265.51 × 42,991.20
  4. Step 4: Simplify right side
    142,823.70x = 9,211,531,393.51
  5. Step 5: Solve for x
    x = 9,211,531,393.51/142,823.70
  6. Step 6: Final answer
    x = 64,495.82

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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.