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Finding the Fourth Proportional to 152,476.88, 210,155.39 and 101,398.32

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Solution

The fourth proportional to 152,476.88, 210,155.39 and 101,398.32 is: 139,754.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,476.88 : 210,155.39 = 101,398.32 : x
  2. Step 2: Convert to fraction form
    152,476.88/210,155.39 = 101,398.32/x
  3. Step 3: Cross multiply
    152,476.88x = 210,155.39 × 101,398.32
  4. Step 4: Simplify right side
    152,476.88x = 21,309,402,977.95
  5. Step 5: Solve for x
    x = 21,309,402,977.95/152,476.88
  6. Step 6: Final answer
    x = 139,754.98

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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.