Home / 102,799.67-141,860.70-57,477.74

Finding the Fourth Proportional to 102,799.67, 141,860.70 and 57,477.74

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Solution

The fourth proportional to 102,799.67, 141,860.70 and 57,477.74 is: 79,317.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,799.67 : 141,860.70 = 57,477.74 : x
  2. Step 2: Convert to fraction form
    102,799.67/141,860.70 = 57,477.74/x
  3. Step 3: Cross multiply
    102,799.67x = 141,860.70 × 57,477.74
  4. Step 4: Simplify right side
    102,799.67x = 8,153,831,721.51
  5. Step 5: Solve for x
    x = 8,153,831,721.51/102,799.67
  6. Step 6: Final answer
    x = 79,317.69

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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.