Home / 152,403.76-210,390.12-101,501.20

Finding the Fourth Proportional to 152,403.76, 210,390.12 and 101,501.20

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Solution

The fourth proportional to 152,403.76, 210,390.12 and 101,501.20 is: 140,120.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,403.76 : 210,390.12 = 101,501.20 : x
  2. Step 2: Convert to fraction form
    152,403.76/210,390.12 = 101,501.20/x
  3. Step 3: Cross multiply
    152,403.76x = 210,390.12 × 101,501.20
  4. Step 4: Simplify right side
    152,403.76x = 21,354,849,648.14
  5. Step 5: Solve for x
    x = 21,354,849,648.14/152,403.76
  6. Step 6: Final answer
    x = 140,120.23

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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.