Home / 190,430.73-285,648.53-72,070.29

Finding the Fourth Proportional to 190,430.73, 285,648.53 and 72,070.29

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Solution

The fourth proportional to 190,430.73, 285,648.53 and 72,070.29 is: 108,106.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,430.73 : 285,648.53 = 72,070.29 : x
  2. Step 2: Convert to fraction form
    190,430.73/285,648.53 = 72,070.29/x
  3. Step 3: Cross multiply
    190,430.73x = 285,648.53 × 72,070.29
  4. Step 4: Simplify right side
    190,430.73x = 20,586,772,034.82
  5. Step 5: Solve for x
    x = 20,586,772,034.82/190,430.73
  6. Step 6: Final answer
    x = 108,106.35

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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.