Home / 152,419.04-210,345.70-91,988.58

Finding the Fourth Proportional to 152,419.04, 210,345.70 and 91,988.58

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Solution

The fourth proportional to 152,419.04, 210,345.70 and 91,988.58 is: 126,948.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,419.04 : 210,345.70 = 91,988.58 : x
  2. Step 2: Convert to fraction form
    152,419.04/210,345.70 = 91,988.58/x
  3. Step 3: Cross multiply
    152,419.04x = 210,345.70 × 91,988.58
  4. Step 4: Simplify right side
    152,419.04x = 19,349,402,252.11
  5. Step 5: Solve for x
    x = 19,349,402,252.11/152,419.04
  6. Step 6: Final answer
    x = 126,948.72

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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.