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Finding the Fourth Proportional to 101,477.02, 140,045.30 and 56,156.90

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Solution

The fourth proportional to 101,477.02, 140,045.30 and 56,156.90 is: 77,500.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,477.02 : 140,045.30 = 56,156.90 : x
  2. Step 2: Convert to fraction form
    101,477.02/140,045.30 = 56,156.90/x
  3. Step 3: Cross multiply
    101,477.02x = 140,045.30 × 56,156.90
  4. Step 4: Simplify right side
    101,477.02x = 7,864,509,907.57
  5. Step 5: Solve for x
    x = 7,864,509,907.57/101,477.02
  6. Step 6: Final answer
    x = 77,500.40

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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.