Home / 152,938.51-210,970.11-142,113.79

Finding the Fourth Proportional to 152,938.51, 210,970.11 and 142,113.79

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Solution

The fourth proportional to 152,938.51, 210,970.11 and 142,113.79 is: 196,038.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,938.51 : 210,970.11 = 142,113.79 : x
  2. Step 2: Convert to fraction form
    152,938.51/210,970.11 = 142,113.79/x
  3. Step 3: Cross multiply
    152,938.51x = 210,970.11 × 142,113.79
  4. Step 4: Simplify right side
    152,938.51x = 29,981,761,908.82
  5. Step 5: Solve for x
    x = 29,981,761,908.82/152,938.51
  6. Step 6: Final answer
    x = 196,038.01

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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.