Home / 170,330.76-255,347.64-70,428.60

Finding the Fourth Proportional to 170,330.76, 255,347.64 and 70,428.60

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Solution

The fourth proportional to 170,330.76, 255,347.64 and 70,428.60 is: 105,581.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,330.76 : 255,347.64 = 70,428.60 : x
  2. Step 2: Convert to fraction form
    170,330.76/255,347.64 = 70,428.60/x
  3. Step 3: Cross multiply
    170,330.76x = 255,347.64 × 70,428.60
  4. Step 4: Simplify right side
    170,330.76x = 17,983,776,798.50
  5. Step 5: Solve for x
    x = 17,983,776,798.50/170,330.76
  6. Step 6: Final answer
    x = 105,581.50

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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.