Home / 102,400.08-141,312.75-57,080.94

Finding the Fourth Proportional to 102,400.08, 141,312.75 and 57,080.94

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Solution

The fourth proportional to 102,400.08, 141,312.75 and 57,080.94 is: 78,772.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,400.08 : 141,312.75 = 57,080.94 : x
  2. Step 2: Convert to fraction form
    102,400.08/141,312.75 = 57,080.94/x
  3. Step 3: Cross multiply
    102,400.08x = 141,312.75 × 57,080.94
  4. Step 4: Simplify right side
    102,400.08x = 8,066,264,603.99
  5. Step 5: Solve for x
    x = 8,066,264,603.99/102,400.08
  6. Step 6: Final answer
    x = 78,772.05

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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.