Home / 121,875.14-182,812.34-42,970.34

Finding the Fourth Proportional to 121,875.14, 182,812.34 and 42,970.34

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Solution

The fourth proportional to 121,875.14, 182,812.34 and 42,970.34 is: 64,455.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,875.14 : 182,812.34 = 42,970.34 : x
  2. Step 2: Convert to fraction form
    121,875.14/182,812.34 = 42,970.34/x
  3. Step 3: Cross multiply
    121,875.14x = 182,812.34 × 42,970.34
  4. Step 4: Simplify right side
    121,875.14x = 7,855,508,406.00
  5. Step 5: Solve for x
    x = 7,855,508,406.00/121,875.14
  6. Step 6: Final answer
    x = 64,455.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.